html,body,#app{
    height: 100%;
    margin: 0;
    padding: 0;
}
.isFixed{
    position: fixed;
    margin-top: 0px;
    z-index: 4;
    width: 100%;
}

.el-header{
    width: 100%;
    box-shadow:0 0 6px rgba(0, 0, 0, 0.03);
    background-color: #373D41;
}
.el-aside{
    position: fixed;
    top:20%;
    left: 73%;
    width: 30%;
    height: 350px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.5)
}
.el-main{
    margin-top: 5px;
    margin-left: 20%;
    width: 52%;
    height: 92%;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.5)
}
.left-el-aside{
    position: fixed;
    left: 10%;
    top: 20%;
    height: 350px;
    width: 9%;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.5)
}
